Beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions
Cetaceans are homeotherms, long-lived top predators, which are at high risk from bioaccumulation and biomagnification of a variety of organic and metallic pollutants. Neurodegenerative diseases, such as Alzheimer’s disease (AD), should be investigated in these animals and considered as a possible ca...
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ftunivlaspalmas:oai:accedacris.ulpgc.es:10553/71397 2023-05-15T18:33:30+02:00 Beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions Sacchini , Simona Espinosa de los Monteros y Zayas, Antonio Paz Sanchez, Yania Herráez Thomas, Pedro Manuel Ramírez Herrera, Tania Aurora Arbelo Hernández, Manuel Antonio Fernández Rodríguez, Antonio Jesús 2018 http://hdl.handle.net/10553/71397 eng eng http://hdl.handle.net/10553/71397 Sí 32nd Annual Conference of the European Cetacean Society. La Spezia, Italy, 6th April – 10th April 2018, p. 150 310907 Patología info:eu-repo/semantics/conferenceObject Conference poster 2018 ftunivlaspalmas 2020-10-28T00:09:27Z Cetaceans are homeotherms, long-lived top predators, which are at high risk from bioaccumulation and biomagnification of a variety of organic and metallic pollutants. Neurodegenerative diseases, such as Alzheimer’s disease (AD), should be investigated in these animals and considered as a possible cause of stranding. In the present study, we show the preliminary results on the beta amyloid (Aβ) peptide and phosphorylated tau protein expression, the pathological hallmarks of AD, in different species of toothed whales. Beta-amyloid is a 40–43 amino acid peptide cleaved from amyloid precursor protein, and a putative gamma-secretase. It is a major component of the extracellular plaques found in AD brain tissue. Neurofibrillary tangles (NFT) are made up of paired helical filaments, which are insoluble structures composed of a highly phosphorylated form of the microtubule-associated protein tau, and associated lipids. In this study, cerebral and cerebellar were obtained from 9 specimens of 6 different species of the suborder Odontoceti, stranded in the Canary Islands between 2001-2017: the Cuvier’s beaked whale (Ziphius cavirostris), the Blainville’s beaked whale (Mesoplodon densirostris) (n=2), the short-finned pilot whale (Globicephala macrorhynchus), the Risso’s dolphin (Grampus griseus), the bottlenose dolphin (Tursiops truncatus), and the Atlantic spotted dolphin (Stenella frontalis) (n=3). Animals were classiefied as adults (n=6), adult-old (n=1), subadult (n=1), and calf (n=1). Sections were stained with thionine and congo red, the most popular dye used as a probe for diagnosing amyloidosis also in AD brains. The immunoperoxidase staining procedure was carried out on free-floating sections. The antibodies used were a monoclonal anti-beta amyloid antibody and a policlonal anti-NFT antibody. In 5 out of the 9 animals immunopositivity to one of the two antibodies was observed, showing typical and atypical hallmarks of neurodegenerative disease and raising more questions on these animals. Conference Object toothed whales Universidad de Las Palmas de Gran Canaria: Acceda |
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Universidad de Las Palmas de Gran Canaria: Acceda |
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language |
English |
topic |
310907 Patología |
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310907 Patología Sacchini , Simona Espinosa de los Monteros y Zayas, Antonio Paz Sanchez, Yania Herráez Thomas, Pedro Manuel Ramírez Herrera, Tania Aurora Arbelo Hernández, Manuel Antonio Fernández Rodríguez, Antonio Jesús Beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions |
topic_facet |
310907 Patología |
description |
Cetaceans are homeotherms, long-lived top predators, which are at high risk from bioaccumulation and biomagnification of a variety of organic and metallic pollutants. Neurodegenerative diseases, such as Alzheimer’s disease (AD), should be investigated in these animals and considered as a possible cause of stranding. In the present study, we show the preliminary results on the beta amyloid (Aβ) peptide and phosphorylated tau protein expression, the pathological hallmarks of AD, in different species of toothed whales. Beta-amyloid is a 40–43 amino acid peptide cleaved from amyloid precursor protein, and a putative gamma-secretase. It is a major component of the extracellular plaques found in AD brain tissue. Neurofibrillary tangles (NFT) are made up of paired helical filaments, which are insoluble structures composed of a highly phosphorylated form of the microtubule-associated protein tau, and associated lipids. In this study, cerebral and cerebellar were obtained from 9 specimens of 6 different species of the suborder Odontoceti, stranded in the Canary Islands between 2001-2017: the Cuvier’s beaked whale (Ziphius cavirostris), the Blainville’s beaked whale (Mesoplodon densirostris) (n=2), the short-finned pilot whale (Globicephala macrorhynchus), the Risso’s dolphin (Grampus griseus), the bottlenose dolphin (Tursiops truncatus), and the Atlantic spotted dolphin (Stenella frontalis) (n=3). Animals were classiefied as adults (n=6), adult-old (n=1), subadult (n=1), and calf (n=1). Sections were stained with thionine and congo red, the most popular dye used as a probe for diagnosing amyloidosis also in AD brains. The immunoperoxidase staining procedure was carried out on free-floating sections. The antibodies used were a monoclonal anti-beta amyloid antibody and a policlonal anti-NFT antibody. In 5 out of the 9 animals immunopositivity to one of the two antibodies was observed, showing typical and atypical hallmarks of neurodegenerative disease and raising more questions on these animals. |
format |
Conference Object |
author |
Sacchini , Simona Espinosa de los Monteros y Zayas, Antonio Paz Sanchez, Yania Herráez Thomas, Pedro Manuel Ramírez Herrera, Tania Aurora Arbelo Hernández, Manuel Antonio Fernández Rodríguez, Antonio Jesús |
author_facet |
Sacchini , Simona Espinosa de los Monteros y Zayas, Antonio Paz Sanchez, Yania Herráez Thomas, Pedro Manuel Ramírez Herrera, Tania Aurora Arbelo Hernández, Manuel Antonio Fernández Rodríguez, Antonio Jesús |
author_sort |
Sacchini , Simona |
title |
Beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions |
title_short |
Beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions |
title_full |
Beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions |
title_fullStr |
Beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions |
title_full_unstemmed |
Beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions |
title_sort |
beta amyloid peptide and phosphorylated tau protein expression in the frontal cortex and cerebellum of the toothed whales: preliminary observations and future directions |
publishDate |
2018 |
url |
http://hdl.handle.net/10553/71397 |
genre |
toothed whales |
genre_facet |
toothed whales |
op_source |
32nd Annual Conference of the European Cetacean Society. La Spezia, Italy, 6th April – 10th April 2018, p. 150 |
op_relation |
http://hdl.handle.net/10553/71397 Sí |
_version_ |
1766218113846607872 |